Oiling System for BMW Z Series E85/6 (2003-2008)

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Tasked with keeping everything properly lubricated, the oiling system is one of the most if not THE most fundamental parts of the engine. Make sure that everything is in good working order and flowing properly to ensure your engine has a long and trouble-free service life.

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Billet Oil Filter Cap
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:21045489
Part#: BMS-OFC
In Stock
Starting at $ 89.00 USD
Free Shipping on orders $49 and up
Starting at $ 89.00 USD
Free Shipping on orders $49 and up
The Burger Motorsports V2 billet aluminum oil filter cover is a metal upgrade that directly replaces your weak OE plastic cap for greater protection, better cooling, ease of removal/install, and looks great under the hood. The built-in 21mm hex and a 3/8" drive socket wrench fitting that does not require a special removal/install tool like the factory cap. Uses the OE oil filter, filter housing o-ring, and filter cage. Anodized for protection. This quality part is a must for any serious BMW owner. Replaces OEM part number 11427525334 - BMW Oil filter cover. Features and Benefits Solid aluminum design is much stronger than brittle plastic 21mm hex head + 3/8" drive socket wrench fitting Integrated heat sinks for better oil cooling Special tools are not required for removal/install like the factory cap Strong design won't fail under pressure Reuses OE filter cage and o-ring Anodized for protection Looks great under the hood Made in the USA
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Accusump Marine 2 Qt Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Canton Racing - Corporate Logo
T#:8246787
Part#: 24-126
Ships on Jul 30, 2026
$ 839.00 USD
$ 839.00 USD
Improved Racing BMW Oil Cooler Thermostat (180F)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:27171935
Part#: IRTHERM
Back Ordered
Starting at $ 318.99 USD
Free Shipping on orders $49 and up
Starting at $ 318.99 USD
Free Shipping on orders $49 and up
Precise Oil Temperature Control for Your BMW Upgrade your BMW N20, N26, N51, N52, N53, N54, N55, and S55 engine's oil temperature control with Improved Racing's high-performance oil cooler adapter. Designed to address flaws in the factory's restrictive oil cooler adapter and faulty internal flow control valve, this upgrade ensures precise oil temperature control. Improved Racing's thermostat provides quick engine warmup, prevents overcooling, and delivers full oil cooling capacity on demand. Trusted by professional race teams around the globe, Improved Racing's thermostats have proven highly reliable, are backed by a lifetime warranty, and are made in the USA. Option to Use the Factory Oil Cooler and Lines The optional factory oil line adapter allows you to use the factory oil cooler lines for a simple, plug-and-play installation. For maximum performance, the factory oil cooler and lines may be replaced with an aftermarket cooler and AN lines using the AN adapter fittings (-10AN line size is recommended). ​Please note that some applications, such as most BMW SUV's, use a water-to-oil heat exchangers. These applications require plugging the coolant supply and return ports, as well as adding an external air-to-oil cooler and lines (factory or aftermarket). Please note the Oil cooler adapter cannot be used without an oil cooler.
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Rally Road M50 Oil Cooler Cap Adapter Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rally Road - Corporate Logo
T#:401511
Part#: RROCCK
Ships on Jul 24, 2026
Starting at $ 243.99 USD
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Starting at $ 243.99 USD
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Rally Road Productions, Inc. is a team supported by a group of people with great abilities in their area of expertise. From the "web guy" and driving instructor friends, to owners of various machine shops, they have surrounded ourselves with people that can be trusted to create and manufacture quality products. This is the key to ensuring everything that they sell will perform as it was intended. The goal is to increase customer satisfaction and make the customization or performance enhancement of your vehicle a more enjoyable venture.

This oil cooler system is race tested and proven to outflow the euro M3 oil filter housing. Additionally, this particular system uses a sealing mechanism to direct the oil flow through the cooler lines and then through the oil filter.  Other cooler caps do not provide this seal and therefore the external oil coolers and lines act as a "balloon".  The lines and cooler are pressurized, but oil does not flow through them.  Flowing oil means it is being cooled and not just acting as an external reservoir.

Flow testing reveals that the oil cooler cap will outflow the Euro M3 Oil Filter Housing by more than 80% at the same, pressure, RPM, and oil temperature. In the upper RPM range, there is nearly a 100% improvement in flow from the RallyRoad oil cooler cap when compared to the Euro M3 oil filter housing.  This is a massive improvement over OE and is a worthwhile upgrade, especially in engines that see severe duty.

Features:

  • -8AN o-ring ports to provide a leak free fitting without the use of Teflon tape or sealant used by other oil cooler caps.
  • Viton o-rings are used throughout to maintain function and sealing in a high-temperature oil environment.
  • Use of the stock filter cap bolt to reduce cost and simplify installation.
  • An internal sealing mechanism to direct oil flow through the oil cooler and through the filter.
  • 1/8" NPT side port for external oil pressure gauge.

Kit Includes:

  • Oil filter cap with fittings
  • Oil filter sealing ring
  • BMW MANN Oil Filter and gasket

This part fits the following BMWs
1992-1999 E36 323i 325i 325is 328i 328is

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24-270X Accusump Pro Electric Valve Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Canton Racing - Corporate Logo
T#:590562
Part#: 24-270X
Ships on Jul 30, 2026
$ 228.00 USD
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$ 228.00 USD
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